registers AMD64 provides, this routine still needs to be written as self-
modifying code for maximum performance. The additional registers do allow
for further optimization over the x86 version by allowing all four pixels
to be in flight at the same time. The end result is that AMD64 ASM is about
2.18 times faster than AMD64 C and about 1.06 times faster than x86 ASM.
(For further comparison, AMD64 C and x86 C are practically the same for
this function.) Should I port any more assembly to AMD64, mvlineasm4 is the
most likely candidate, but it's not used enough at this point to bother.
Also, this may or may not work with Linux at the moment, since it doesn't
have the eh_handler metadata. Win64 is easier, since I just need to
structure the function prologue and epilogue properly and use some
assembler directives/macros to automatically generate the metadata. And
that brings up another point: You need YASM to assemble the AMD64 code,
because NASM doesn't support the Win64 metadata directives.
- Added an SSE version of DoBlending. This is strictly C intrinsics.
VC++ still throws around unneccessary register moves. GCC seems to be
pretty close to optimal, requiring only about 2 cycles/color. They're
both faster than my hand-written MMX routine, so I don't need to feel
bad about not hand-optimizing this for x64 builds.
- Removed an extra instruction from DoBlending_MMX, transposed two
instructions, and unrolled it once, shaving off about 80 cycles from the
time required to blend 256 palette entries. Why? Because I tried writing
a C version of the routine using compiler intrinsics and was appalled by
all the extra movq's VC++ added to the code. GCC was better, but still
generated extra instructions. I only wanted a C version because I can't
use inline assembly with VC++'s x64 compiler, and x64 assembly is a bit
of a pain. (It's a pain because Linux and Windows have different calling
conventions, and you need to maintain extra metadata for functions.) So,
the assembly version stays and the C version stays out.
- Removed all the pixel doubling r_detail modes, since the one platform they
were intended to assist (486) actually sees very little benefit from them.
- Rewrote CheckMMX in C and renamed it to CheckCPU.
- Fixed: CPUID function 0x80000005 is specified to return detailed L1 cache
only for AMD processors, so we must not use it on other architectures, or
we end up overwriting the L1 cache line size with 0 or some other number
we don't actually understand.
SVN r1134 (trunk)
Karate Chris.
- Added several type checks to the weapon slot code.
- Changed: Players no longer respawn in instant death sectors with
the 'Respawn where died' flag on.
SVN r1101 (trunk)
CMake 2.4, since the distros don't seem to consider 2.6 stable yet.
As a bonus, GTK+ is no longer a required dependency; now it's optional.
- Made dehsupp ignore CR characters, so it doesn't spew warnings on Linux.
SVN r1092 (trunk)
- Added more resolution options when playing windowed under SDL.
- Changed SDL mouse handling to be basically identical to the (non-DirectInput)
Win32 code. The mouse is polled periodically and constantly warped to the
center of the window. Despite what the SDL docs specify, SDL_WM_GrabInput()
is apparently no longer a reliable means of obtaining continuous relative
mouse motion events.
- Fixed: The non-Windows implementation of I_FindClose() did not check for -1
handles.
SVN r432 (trunk)
be surprised if it doesn't work.
- Reorganized the network startup loops so now they are event driven. There is
a single function that gets called to drive it, and it uses callbacks to
perform the different stages of the synchronization. This lets me have a nice,
responsive abort button instead of the previous unannounced hit-escape-to-
abort behavior, and I think the rearranged code is slightly easier to
understand too.
- Increased the number of bytes for version info during D_ArbitrateNetStart(),
in preparation for the day when NETGAMEVERSION requires more than one byte.
- I noticed an issue with Vista RC1 and the new fatal error setup. Even after
releasing a DirectDraw or Direct3D interface, the DWM can still use the
last image drawn using them when it composites the window. It doesn't always
do it but it does often enough that it is a real problem. At this point, I
don't know if it's a problem with the release version of Vista or not.
After messing around, I discovered the problem was caused by ~Win32Video()
hiding the window and then having it immediately shown soon after. The DWM
kept an image of the window to do the transition effect with, and then when
it didn't get a chance to do the transition, it didn't properly forget about
its saved image and kept plastering it on top of everything else
underneath.
- Added a network synchronization panel to the window during netgame startup.
- Fixed: PClass::CreateDerivedClass() must initialize StateList to NULL.
Otherwise, classic DECORATE definitions generate a big, fat crash.
- Resurrected the R_Init progress bar, now as a standard Windows control.
- Removed the sound failure dialog. The FMOD setup already defaulted to no
sound if initialization failed, so this only applies when snd_output is set
to "alternate" which now also falls back to no sound. In addition, it wasn't
working right, and I didn't feel like fixing it for the probably 0% of users
it affected.
- Fixed: The edit control used for logging output added text in reverse order
on Win9x.
- Went back to the roots and made graphics initialization one of the last
things to happen during setup. Now the startup text is visible again. More
importantly, the main window is no longer created invisible, which seems
to cause trouble with it not always appearing in the taskbar. The fatal
error dialog is now also embedded in the main window instead of being a
separate modal dialog, so you can play with the log window to see any
problems that might be reported there.
Rather than completely restoring the original startup order, I tried to
keep things as close to the way they were with early graphics startup. In
particular, V_Init() now creates a dummy screen so that things that need
screen dimensions can get them. It gets replaced by the real screen later
in I_InitGraphics(). Will need to check this under Linux to make sure it
didn't cause any problems there.
- Removed the following stubs that just called functions in Video:
- I_StartModeIterator()
- I_NextMode()
- I_DisplayType()
I_FullscreenChanged() was also removed, and a new fullscreen parameter
was added to IVideo::StartModeIterator(), since that's all it controlled.
- Renamed I_InitHardware() back to I_InitGraphics(), since that's all it's
initialized post-1.22.
SVN r416 (trunk)
- Made the Ettin's and Centaur's howling sound an actor property.
- Added A_CustomComboAttack function to finally have something that can
replace the old A_ComboAttack function.
- Added A_SpawnItemEx function that removes the problems with A_SpawnItem
and which also should make most of the A_CustomMissile abuse unnecessary.
- Added A_QueueCorpse to the list of DECORATE code pointers.
- Made the size of Hexen's corpse queue configurable by CVAR
(sv_corpsequeuesize.) Setting this CVAR to -1 will disable corpse
queuing completely so that even in Hexen all corpses will stay forever.
SVN r392 (trunk)
could not be saved for some reason.
- Added the writeini console command to write the config file, optionally
specifying a specific file name for it.
- Fixed: "Multiplayer" demos that only had one player were not played back
properly because the demo playback code only checked the number of players
to determine if it should be played as a netdemo.
SVN r333 (trunk)
- The stat meters now return an FString instead of sprintfing into a fixed
output buffer.
- NOASM is now automatically defined when compiling for a non-x86 target.
- Some changes have been made to the integral types in doomtype.h:
- For consistancy with the other integral types, byte is no longer a
synonym for BYTE.
- Most uses of BOOL have been change to the standard C++ bool type. Those
that weren't were changed to INTBOOL to indicate they may contain values
other than 0 or 1 but are still used as a boolean.
- Compiler-provided types with explicit bit sizes are now used. In
particular, DWORD is no longer a long so it will work with both 64-bit
Windows and Linux.
- Since some files need to include Windows headers, uint32 is a synonym
for the non-Windows version of DWORD.
- Removed d_textur.h. The pic_t struct it defined was used nowhere, and that
was all it contained.
SVN r326 (trunk)
using duplicate DoomEdNums and will affect all attempts to spawn the
replaced actor. However, because this happens for all spawns and not just
at map load, the replacing actor must be compatible with the replaced
actor, which means that an actor can only serve as a replacement for one
of its baseclasses. For example, if you want to use a modified imp, you can
use this DECORATE:
actor MyImp : DoomImp replaces DoompImp
{
// Put changed properties here
}
- New: The IWAD dialog now remembers the last IWAD you picked and
automatically highlights it the next time you run the game. This also
applies if you check "Don't ask me this again": The IWAD selected will be
the one that gets automatically loaded, not the one located first. (Using
the -iwad parameter will not change the default IWAD.) In addition, you
can now bring the dialog up even if you disable it by holding down SHIFT
during startup.
- Changed ExtractFilePath() and ExtractFileBase() to return FStrings instead
of writing to a provided output buffer. ExtractFileBase() can also
optionally keep the file's extension in the result.
- Removed the -heapsize parameter entirely. The informational message should
no longer be needed.
- Removed -maxdemo parameter. There's no point to having it around since
the demo buffer grows automatically.
SVN r238 (trunk)
functions added to the exit chain with atterm so that they can be called
in a deterministic order and not whatever order the linker decides to put
them in.
- Fixed: DCajunMaster did not free its getspawned.
- Fixed: P_FreeLevelData() did not free ACS scripts.
- Fixed: Level snapshots were not freed at exit.
- Fixed: The save/load menu list was not freed at exit.
- Fixed: FCompressedMemFile needs a destructor to free the m_ImplodedBuffer.
- Fixed: G_DoLoadGame() did not free the engine string.
- Fixed: M_ReadSaveStrings() did not free the engine string.
- Fixed: Processing DEM_SAVEGAME did not free the pathname string.
- Added a check for truncated flats to FFlatTexture::MakeTexture() because
Heretic's F_SKY1 is only four bytes long.
- Added a dump of the offending state to the "Cannot find state..." diagnostic.
- Fixed: FCompressedFile did not initialize m_Mode in its default constructor.
- Fixed: Heretic and Hexen status bars did not initialize ArtiRefresh.
- Fixed: PNGHandle destructor should use delete[] to free TextChunks.
SVN r111 (trunk)
- Converted A_Hexendecorations.cpp
- Changed the lower decal spawning code to transfer the main decal's color if
the lower decal's default color is the same as the main decal's.
- Changed the decal stretcher back to use the specified size parameters as a
scaling factor and not a destination size because this is more consistent with
the rest of the decal code. Also adjusted the blood smear definition in DECALDEF
and the description in the Wiki for this.
- Added Jim's most recent fixes.
SVN r77 (trunk)
returning from one function to another function when the function that
was called was used as part of an expression.
- Fixed: Using Thing_Hate with arg0 (hater) set to 0 from an open script
could crash.
- Fixed: Some items along ledges in Hexen's MAP32 (Orchard of Lamentations)
appeared at the bottom of the ledge (and consequently inside it) instead
of on top of it because the items were placed directly on the lines.
AActor::LinkToWorldForMapThing() needs to use the original R_PointOnLineSide()
code to handle situations like this. Previously, it just used the original
code for straight horizontal/vertical lines and used the new code for
diagonal lines.
- Fixed: FWadCollection::MergeLumps() used in incorrect realloc.
- Fixed: FPlayList::NextLine() did not properly handle blank lines in the
playlist.
- Changed: Decals now use lightweight thinkers instead of actors. (76 bytes
versus 396, so you save 320k if you have 1024 decals present.)
- Fixed: Wads added with pullin were loaded immediately after the IWAD.
Exec files are now processed immediately before -file but after autoloading
wads in D_DoomMain().
- Fixed: sdl/i_system.h unconditionally defined SHARE_DIR, preventing
redefinition from the command line.
- Fixed: The standard way to include SDL.h is <SDL.h>, not <SDL/SDL.h>.
- Fixed: Returned FActiveInterpolation::HashKey()'s return type to size_t,
avoiding a pointer truncation warning.
SVN r30 (trunk)
